Portable chair.



PTENTBD JULY 30, 1907.

W. B; FREDERICK & C. L. OKELL.

PORTABLE CHAIR. APPmoA'rIoNVHLBn 00124, 190e.

ATTORNEYS WZZZWZ 05677 Z165 JNVENTORJ YBJ] I 'I' UNITED STATES PATENTmuon.

WILLIAM B. FREDERICK AND CHARLES L. OKELL, OF FORT MADlSON, IOWA.

PORTABLE CHAIR.

Specification of Letters Patent.

Patented July 30, 1907.

Application filed October 24,1906. Serial No. 340.387. A

To all 'whom 'it may concern:

Be it known that we, WILLIAM B. FREDERICK and CHARLES L. OKELL, citizensof the United States, residing at Fort Madison, in the county of Lee andState of Iowa, have invented a new and useful Portable Chair, of whichthe following is a specification.

This invention relates to portable chairs of that character designed foruse upon stands, etc., where the ordinary board seats are provided. Y

The obj ect of the invention is to provide a foldable seat which can bereadily carried and which has combined with it a back securely connectedto the seat so as to form a rigid back rest for the user.

A still further object is to provide novel means whereby the seat can besecurely fastened to a supporting board and displacement thereofprevented as long as desired.

With these and other objects in view the invention consists of certainnovel features of construction and combinations of parts which will behereinafter more fully described and pointed out in the claims.

In the accompanying drawings is shown the preferred form of theinvention.

In said drawings: Figure 1 is a perspective view showing the seat inposition upon a supporting board, a portion of the seat and back beingbroken away to show one of the connecting links in perspective; Fig. 2is a side elevation of the chair folded7 the casing of the adjustableholder being shown in section; and Fig. 3 is an enlarged transversesection through the adjustable holder and a portion of the seat.

Referring to the figures by characters of reference, 1 is the seat ofthe chair the sides thereof being provided with longitudinal slots 2whichA are open at their rear ends, and within whichare pivoted the endsof links 3. The opposite ends of these links are pvoted within slots 4formed longitudinally within the side strips of a back 6 and the linksare so proportioned that when the same are disposed longitudinallywithinthe slots 2 the sides of the back 6 will project below the rear of theseat and will contact therewith and be braced at a predetermined angleto the seat. Supporting plates 7 are secured upon the bottom of the seat1 so as to extend under the slots 2 and these plates serve to limit thedownward movement of the link. By slightly raising the back the same canbe swung forward on to the seat7 as shown in Fig. 2 and form a compactbundle. Those portions of the back projecting below the seat areprovided with sharpened lugs 8.

`Secured to each side of the seat 1 near a point adjacent the frontthereof is a casing 9 which may be fastened in any preferred manner andslidably mounted within this casing is a rack bar l0 having a hook 11 atits iront end, while its rear end is provided with an enlargement orhead 12. This bar is adapted to slide upon a stop or holding screw 13which extends transversely through the front portion of the casing andthe teeth on the rack bar are adapted to successively engage this stop,although ordinarily they can be disengaged therefrom simply by liftingthe rack bar. A stem 14 is rotatably mounted within the upper portion ofthe casing and adjacent the stop 14, and the outer end of this stemcarries a knob 15 while that portion thereof within the casing has aneccentric 16 extending therefrom and adapted to bear upon the bar tohold the same in position upon the stop 14. By turning this eccentricaway from the bar the same can be lifted from the stop and moved to anydesired position thereon after which the bar can be locked in place byturning the knob 15 so as to throw the eccentric 16 downwardlthereagainst. As heretofore stated one of these adjustable rack bars islocated at each side of the chair seat and one of the lugs 8 is alsoarranged in the lower portion of each side of the back 6. When the chairis folded as shown in Fig. 2 it can be conveniently carried fromv placeto place and should it be desired to secure it upon a supporting boardsuch as shown at 17 the back is swung upward from the seat and the links3 moved downward into the slots 2 until they rest on the plates 7. Therack bars 10 are then adjusted longitudinally until the distance betweenthe hooks 11 and the lugs 8 are approximately the same as the width ofthe board 17. The hooks 11 are then forced into the front edge of theboard and the back is pressed backward so as to swing the lugs 8 forwardinto engagement with the rear edge of the board 17. The chair willtherefore be securely locked in place and there will be no danger of thesame slipping out of position as a result of the movement of a personoccupying it. The chair can be very easily detached from the boardsimply by folding the back downward on to the seat. This will serve towithdraw the lugs 8 from the rear edge of the board 17 and the hooks 11will be easily pulled forward from the board.

It will bev seen that this chair is very simple, durable and compact inconstruction and in view of the facility with which it can be connectedto a supporting board it is especially adapted for use at chautauquas,athletic fields, and other places where rough stands are often erectedfor use by large assemblies. By providing this seat a person can occupya stand of rough construction without danger of injury to clothing fromsplinters, etc.7 and the comfort of the user is insured because of thesize of the seat and the provision of the back.

The preferred form of the invention has been set forth in the foregoingdescription but we do not limit l ourselves thereto as we are aware thatmodifications may be made therein without departing from the spirit orsacrificing the advantages thereof, and we therefore reserve the rightto make such changes as fairly fall Within the scope oi the claims.

What is claimed is:

1. A chair comprising a seat, a back, links pivoted Within the seat andback, said back being adapted to fold upon the seat and having an endadapted to project below the seat, lugs upon saidprojecting portion ofthe back, and'adjustable support engaging devices carried rby the s eat.

K 2. A chair comprising a seat having slots therein, a slotted back,links pivoted within the slots and the seat and back, said back beingadapted to fold upon the seat, support engaging devices extending fromone end portion of the back, rack bars adjustably mounted upon the seat,support engaging hooks carried thereby, and means for locking the barsin adjusted position.

A chair comprising a seat having slots in the sides thereof, a backhaving slots therein, links pivoted Within the slots and the seat andback, said back being adapted to fold upon the seat and one end of theback to project below the seat, support engaging devices upon saidprojecting portion of the back, and support engaging devices adjustablyconnected to the seat.

4. A chair comprising a seat having slots inthe sides thereof, a backhaving slots therein, links pivoted within the slots and the seat andback, said back being .adapted to fold upon the seat and one end of theback to project below the seat, support engaging devices upon saidprojecting portion of the back, rack bars adjustably connected to theseat, support engaging hooks extending therefrom, and means for lockingthe bars in adjusted position.

5. A' chair comprising a seat, a back, an oscillatory connection betweenthe back and seat, support engaging de- Vvices carried by the back, rackbars adjustably connected to the seat, support engaging devices integralwith said bars, and means for locking the rack bars in adjustedposition.

(l. A chair comprising a seat, a back, links pivoted Within the seat andback, said back being adapted to fold flat upon the seat and having aportion adapted to project below the seat, support engaging meanscarried by said pro jecting portion, and adjustable support engagingdevices carried by the seat.

In testimony that we claim the foregoing as our own, We have heretoaiixed our signatures it the presence of two witnesses.

WILLIAM B. FREDERICK. CHARLES L. OKELL.

Witnesses:

LILLlAN OKELL, F. G. FRI-:Dumon

